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how to fill a pool filter with sand

Introduction:

A backyard pool is a wonderful place to relax with friends and family on a hot summer day. However, keeping it clean and clear requires regular maintenance, including periodically replacing the filter sand. In this article, we will discuss step-by-step instructions on how to fill a pool filter with sand to keep your pool sparkling clean.

Subheading 1: Understanding the different types of pool filters

Before you begin to fill your pool filter with sand, it is important to understand the different types of pool filters available in the market. There are three main types of pool filters- sand, cartridge, and diatomaceous earth (DE). Sand filters are the most commonly used filter in residential pools due to their affordability and low maintenance. Cartridge filters are a bit more expensive, but they have higher filtration efficiency and require less frequent backwashing. Diatomaceous earth filters provide the highest level of filtration, but they require more maintenance and frequent cleaning.

Subheading 2: Selecting the right type of sand

Not all pool filter sands are equal. The most commonly used sand is #20 silica sand, which has a particle size of 0.45-0.55 mm. It is important to use the correct grade of sand as the wrong grade can lead to poor filtration and decreased water quality. Other types of sand that can be used in pool filters include zeolite sand, recycled glass, and filter glass.

Subheading 3: Preparing the filter for sand replacement

Before draining the pool filter, it is important to turn off the pump and release the pressure from the system. Next, remove the filter valve and the old sand carefully. Make sure to check for any cracks, leaks, or signs of damage in the system. Clean the filter tank and all of its components thoroughly using a garden hose and a soft-bristled brush.

Subheading 4: Adding the new sand to the filter

Once the filter is completely clean, it is time to add the new sand. Start by adding a layer of gravel at the bottom of the filter tank, which helps to distribute the water evenly and prevent sand from entering the pool. Add the new sand slowly, being careful not to damage the laterals or standpipe. Fill the filter tank about two-thirds full with sand, leaving enough room for expansion.

Subheading 5: Finishing the process

Once the sand is in place, reassemble the filter by replacing the filter valve carefully. Make sure everything is tightly secured to avoid any air leaks. Finally, turn the pump back on and bleed the air from the system before restarting the filtration cycle. Allow the pump to run for 24-48 hours to ensure that the system is working correctly.

Conclusion:

Maintaining a clean and healthy pool requires regular upkeep, which includes replacing the filter sand. Following these simple instructions when filling a pool filter with sand will help to maintain a high level of filtration and prolong the life of your pool filter. Always remember to read your pool filter instruction manual for any specific instructions before starting the process.

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----Yes, they can. Silica sand is mainly used for filtration, while activated carbon is mainly used for adsorption. Silica sand is effective for higher water quality requirements. When use them together, silica sand should be placed on the bottom layer, and then activated carbon should be filled on the sand, but the cost of using two media is much higher.
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After about 5~10days ,or when the reading of the pressure gauge on the pump side of the filter has increased by about 0.2bars since the last backwash , backwash the filter as follows:
1. Stop the pump
2.Close the valves on the suction and return lines.
3.Open the cover of the pump and empty the filter gasket .
4.Refit the cover
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7. Open the valves to the suction and return lines.
8.Start the pump .Rinse the filter for about 1 to 2 minutes until the water in the sight glass is clear .
NOTE : Any electric heater must be off .
9. Stop the pump
10. Turn the lever to RINSE , start the pump and rinse for about 15~30 seconds. Stop the pump and turn the lever to FILTER . This is the normal operating position .
11. Close the drain outlet valve and start the pump . Switch on the electric heater if any .
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